Hey there Skippy,
If you know command prompt try this:-
1.Open CmD (Run - CMD)
2.Type this rundll32 printui.dll,PrintUIEntry /ga /n\\YOURSERVERNAME\YOURPRINTERNAME
This should be it, and if you don't follow this try this:-
Right click the printer you want to share - Properties - Security - Select 'ALL USERS' from GROUPS.
That's it and be sure to check the ALLOW BUTTON at the bottom before you exit.
Now your printer is 'all user accesible' (AUA)